1.10

• R123EXAMPLE_ENVCONF_SEED environment variable provides seed to most pi_* examples
• R123EXAMPLE_ENVCONF_CUDA_DEVICE and R123EXAMPLE_ENVCONF_OPENCL_DEVICE allow selection of non-default GPUs, e.g. R123EXAMPLE_ENVCONF_CUDA_DEVICE=980 pi_cuda or R123EXAMPLE_ENVCONF_OPENCL_DEVICE=680 pi_opencl
• Updated hardcoded device core detection with newer GPUs (Kepler, Maxwell) and changed default cores from 1 to 384 to run more sensible number of iterations on unrecognized devices.
• moved lots of arbitrary, funny, irrelevant constants into example_seeds.h so that they do not confuse the punters.
• Tested on ARMv7 (32bit) and `ARM A53 (64bit) with Freescale/Linaro toolchain gcc 4.8. Needed workaround for -O3 compiler bug on ARMv7.